Results 131 to 140 of about 126,546 (328)
Measurement of the Parallax of PSR B0950+08 Using the VLBA
, 2000 A new technique has been developed to remove the ionosphere's distorting effects from low frequency VLBI data. By fitting dispersive and non-dispersive components to the phases of multi-frequency data, the ionosphere can be effectively removed from the ...
A. J. Beasley +6 more
core +2 more sources
AtmosphereIn this review paper, the equations of motion describing the fluid dynamics of the ionosphere are constructed step by step, so that any master or post-graduate student may get familiar with the general theory of the “traditional” approach to Ionospheric Physics, in which chemicals forming the Earth’s upper atmosphere are represented as fluids in mutual
openaire +2 more sources
Do the Antennas of DEMETER Spacecraft Detect Dust Impacts?
Journal of Geophysical Research: Space Physics, Volume 130, Issue 5, May 2025.Abstract This study investigates pulses detected by the electric field instrument, ICE (Instrument Champ Electrique) onboard the DEMETER spacecraft. Using an automated identification algorithm, we identified 1,000 short pulses recorded in 2005 and 2010. The spatial distribution of these signals, primarily localized over South America and near the South
Samia Ijaz +3 more
wiley +1 more source
Ionospheric effect on the synthetic Epoch of Reionization observations with the SKA1-Low [PDF]
JCAP, Volume 2025, February 2025The redshifted $21$\,cm signal of neutral hydrogen can be used as a direct probe of the intergalactic medium during Cosmic Dawn\,(CD) and Epoch of Reionization\,(EoR). However, detecting this inherently weak signal has numerous challenges. The major ones include accurate foreground removal from low-frequency radio observations and systematics arising ...
arxiv +1 more source
Journal of Geophysical Research: Space Physics, Volume 130, Issue 5, May 2025.Abstract In this work, we used multiple ground‐based and space‐borne instruments, and we studied the ionospheric, thermospheric, magnetic and electrodynamic responses to the annular eclipse of 14 October 2023, that affected both North and South America.
Ines Dahlia Ouar +2 more
wiley +1 more source
Вестник Северо-Кавказского федерального университета, 2022 Algorithm of estimation of random errors in the obtained temperature and ion composition of ionospheric plasma is presented in the paper. The results of simulation based on the developed algorithm are analyzed.
Aleksandr Viktorovich Bogomaz
doaj
TEC enhancement due to energetic electrons above Taiwan and the West Pacific [PDF]
arXiv, 2013 The energetic electrons of the inner radiation belt during a geomagnetic disturbance can penetrate in the forbidden range of drift shells located at the heights of the topside equatorial ionosphere (<1000 km). A good correlation was previously revealed between positive ionospheric storms and intense fluxes of quasi-trapped 30-keV electrons at ~900 km ...
arxiv
Atmosphere-Ionosphere Response to the M9 Tohoku Earthquake Revealed by Joined Satellite and Ground Observations. Preliminary results [PDF]
, 2011 The recent M9 Tohoku Japan earthquake of March 11, 2011 was the largest recorded earthquake ever to hit this nation. We retrospectively analyzed the temporal and spatial variations of four different physical parameters - outgoing long wave radiation (OLR)
Davidenko, Dimitri +7 more
core +2 more sources
Journal of Geophysical Research: Space Physics, Volume 130, Issue 5, May 2025.Abstract The interaction of electrons with electrostatic electron cyclotron harmonic (ECH) waves in the Earth's magnetosphere can lead to the scattering of plasma sheet electrons into the atmospheric loss cone, affecting the evolution of electron phase space density.
Katja Stoll +6 more
wiley +1 more source
The Effect of Sudden Ionospheric Disturbances (S.I.D.'s) on 2·28 Mc/s Pulse Reflections from the Lower Ionosphere [PDF]
, 1959 F. F. Gardner
openalex +1 more source